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2 years ago

14

Kent has paid a total of $589 For internet service. Each month of service cost $19. How many months, m, of internet service has

Ken't paid for? Use the model.
Giving brainliest

2 answers:

max2010maxim [7]2 years ago

8 0

Answer:

31 months

Step-by-step explanation:

kobusy [5.1K]2 years ago

3 0

Answer:

589/19=31 dollars a month

Step-by-step explanation:

Hope this helps!

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natta225 [31]

Using V = ⅓[base area×height]
V= ⅓[ (5.5÷4)² × 2.6]
v= ⅓[ 4.92]
v = 1.6m³

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4 years ago

Deandre's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Deandre $4.15 per pound, and t

IRISSAK [1]

There were 30.07 pounds of coffee used for coffee A

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3 years ago

A line passes through (3, 7) and (6, 9). Which equation best represents the line?

WARRIOR [948]

The answer is the first option
y=3/2x+5

7 0

3 years ago

Help plz.....................

bonufazy [111]

Answer:

A

Step-by-step explanation:

Remark

The trick here is convert what you have to Ax + By = C

Solution

<u><em>Given</em></u>

y - 3 = 1/2 ( x + 6) Multiply both sides by 2

<em><u>Solve</u></em>

2(y - 3) = 2 * 1/2 (x + 6) Do the multiplication
2(y - 3) = x + 6 Remove the brackets
2y - 6 = x + 6 Add 6 to both sides.
2y - 6 + 6 = x + 6 + 6 Combine
2y = x + 12 Subtract x from both sides.
-x + 2y = x - x + 12 Combine
-x + 2y = 12

Answer

A = - 1
B = 2
C = 12

or

When you multiply through by - 1 you get x - 2y = - 12 which is A

7 0

3 years ago

7. All of the following are perfect square trinomials EXCEPT one. Which is it?

wolverine [178]

Answer:

All answers EXCEPT answer C. are perfect square trinomials.

Step-by-step explanation:

A perfect square trinomial is polynomial that satisfies the following condition:

$(a+b)^{2} = a^{2}+2\cdot a \cdot b + b^{2}$ , $\forall\,a,b\in\mathbb{R}$

Let prove if each option observe this:

a) $4\cdot x^{2} + 12\cdot x\cdot y + 9\cdot y^{2}$

1) $4\cdot x^{2} + 12\cdot x\cdot y + 9\cdot y^{2}$ Given

2) $(2\cdot x)^{2}+ 2\cdot (2\cdot x)\cdot (3\cdot y)+(3\cdot y)^{2}$ Definition of power/Distributive, associative and commutative properties.

3) $a = 2\cdot x$ , $b = 3\cdot y$ Definition of perfect square trinomial/Result.

b) $9\cdot a^{2}-36\cdot a + 36$

1) $9\cdot a^{2}-36\cdot a + 36$ Given.

2) $(3\cdot a)^{2}-2\cdot (3\cdot a)\cdot 6 + 6^{2}$ Definition of power/Distributive, associative and commutative properties.

3) $a = 3\cdot a$ , $b = 6$ Definition of perfect square trinomial/Result.

c) $x\cdot y^{2}-4\cdot x^{2}\cdot y^{2}+4\cdot x^{2}\cdot y^{2}$

1) $x\cdot y^{2}-4\cdot x^{2}\cdot y^{2}+4\cdot x^{2}\cdot y^{2}$ Given

2) $x\cdot y\cdot (1-4\cdot x+4\cdot x)$ Distributive property.

3) $x\cdot y \cdot 1$ Existence of the additive inverse/Modulative property.

4) $x\cdot y$ Modulative property/Result.

d) $a^{2}\cdot b^{2}+4\cdot a^{3}\cdot b + 4\cdot a^{4}$

1) $a^{2}\cdot b^{2}+4\cdot a^{3}\cdot b + 4\cdot a^{4}$ Given

2) $(a\cdot b)^{2}+2\cdot (a\cdot b)\cdot (2\cdot a^{2})+(2\cdot a^{2})$ Definition of power/Distributive, associative and commutative properties.

3) $a = a\cdot b$ , $b = 2\cdot a^{2}$ Definition of perfect square trinomial.

All answers EXCEPT answer C. are perfect square trinomials.

8 0

3 years ago